(2S-trans)-[1-[[2-[3,4-bis(acetyloxy)phenyl]-2-oxoethoxy]hydroxyphosphinyl]-2-methyl-4-oxo-3-azetidinyl]carbamic acid, 1,1-dimethylethyl ester, monopotassium salt 在
乙酸铵 作用下,
以
水 为溶剂,
生成
(2S-trans)-[1-[[2-(3,4-dihydroxyphenyl)-2-oxoethoxy]hydroxyphosphinyl]-2-methyl-4-oxo-3-azetidinyl]carbamic acid, 1,1-dimethylethyl ester, monopotassium salt